| 摘要 |
While moving a plurality of areas having a predetermined positional relation with each other on a viewing coordinate system, a degree-of-coincidence calculating unit, based on the result of a viewing unit viewing an object, calculates the degree of inter-area coincidence in at least one pair of viewing-result parts out of viewing-result parts in the plurality of areas in light of given inter-area symmetry therein (steps 151 through 160), and a position-information calculating unit obtains the position information of the object by obtaining the position of the plurality of areas at which the degree of inter-area coincidence, which is a function of the position of the plurality of areas in the viewing coordinate system, takes on, for example, a maximum, (step 161). As a result, the position information of the object is accurately detected. <IMAGE>
|
